body{
  margin: 0;
  padding: 0;
}
#container{
  height: calc(100vh - 32px);
  display: flex;
  flex-wrap: wrap;
  overflow: hidden;
}
.left{
  flex-basis: 200px;
  box-sizing: border-box;
}
.left>.component-item{
  border: 1px solid #ccc;
  padding: 1em;
}
.center{
  flex-basis: calc(100% - 500px);
  box-sizing: border-box;
}
.right{
  flex-basis: 300px;
  box-sizing: border-box;
}

.right .outline{
  height: 300px;
  overflow: auto;
  box-sizing: border-box;
  border-top: 1px solid #ccc;
  border-bottom: 1px solid #ccc;
}
.right .outline .opener{
  margin-left: 20px;
}
.right .outline .opener.open:after {
  content: '−';
}

.right .outline .opener.closed:after {
  content: '+';
}

.option {

	border: 1px solid transparent;

}

.right .outline  .option.drag {

	border: 1px dashed #999;

}

.right .outline  .option.dragTop {

	border-top: 1px dashed #999;

}

.right .outline  .option.dragBottom {

	border-bottom: 1px dashed #999;

}

.right ul{
  list-style: none;
}
.right ul .selected{
  background-color: rgba(220, 228, 233, 0.849);
}
.right ul li{
  cursor: pointer;
}

/**
场景大纲拖拽物体时
*/
.right ul li.tezero-drop-line::before{
  content: '';
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  height: 4px;
  width: 100%;
  background-color: rgb(184, 197, 207);
}
.header{
  height:30px;
}
.header>button{
  border: none;
  line-height: 30px;
  height: 100%;
}